Analysis
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max time kernel
136s -
max time network
146s -
platform
windows10-1703_x64 -
resource
win10-20220812-en -
resource tags
arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system -
submitted
01-12-2022 15:46
General
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Target
rufus-3.13.exe
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Size
1.1MB
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MD5
c844fa688f3aafa80790ecd6a204bbb7
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SHA1
da498e3e80186ee16620f56a601e19fbdc1f8551
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SHA256
ec3136b053bd1559ad7ec1ea104113898093b886bf519e6117b138ef2e691cbb
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SHA512
442ab6f55fe3b9b648290d4f4ff6ac6bd3d3fe906936bbb26f7a9b31b52ff02aab6601cf342d3e11f705260585708aff80b45cf40633daf69d41d691d399a4df
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SSDEEP
24576:PakG2227tNDajxxTL6vpBedHlDW5nROQ7X1yBhpzAn:CtRwajxFL6vpwdHlcg01yB/z
Malware Config
Signatures
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resource yara_rule behavioral1/memory/2016-120-0x0000000001300000-0x0000000001634000-memory.dmp upx behavioral1/memory/2016-166-0x0000000001300000-0x0000000001634000-memory.dmp upx -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA rufus-3.13.exe -
Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini rufus-3.13.exe File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol rufus-3.13.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI rufus-3.13.exe File opened for modification C:\Windows\System32\GroupPolicy rufus-3.13.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Checks SCSI registry key(s) 3 TTPs 11 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_DADY_DVD-ROM\4&215468a5&0&010000 rufus-3.13.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_DADY_DVD-ROM\4&215468a5&0&010000\Service rufus-3.13.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_DADY_DVD-ROM\4&215468a5&0&010000\UpperFilters rufus-3.13.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Service rufus-3.13.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\HardwareID rufus-3.13.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName rufus-3.13.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_DADY_DVD-ROM\4&215468a5&0&010000\LowerFilters rufus-3.13.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000 rufus-3.13.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\UpperFilters rufus-3.13.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\LowerFilters rufus-3.13.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_DADY&PROD_HARDDISK\4&215468A5&0&000000 rufus-3.13.exe -
Modifies registry class 34 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\LogicalViewMode = "1" rufus-3.13.exe Set value (int) \REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByDirection = "1" rufus-3.13.exe Set value (data) \REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f50e04fd020ea3a6910a2d808002b30309d0000 rufus-3.13.exe Set value (int) \REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\NodeSlot = "1" rufus-3.13.exe Set value (data) \REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff rufus-3.13.exe Key created \REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 rufus-3.13.exe Set value (str) \REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\SniffedFolderType = "Generic" rufus-3.13.exe Key created \REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg rufus-3.13.exe Set value (data) \REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\Sort = 000000000000000000000000000000000100000030f125b7ef471a10a5f102608c9eebac0a00000001000000 rufus-3.13.exe Set value (str) \REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByKey:FMTID = "{00000000-0000-0000-0000-000000000000}" rufus-3.13.exe Key created \REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell rufus-3.13.exe Set value (data) \REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots rufus-3.13.exe Set value (int) \REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByKey:PID = "0" rufus-3.13.exe Set value (data) \REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 14002e8005398e082303024b98265d99428e115f0000 rufus-3.13.exe Set value (data) \REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff rufus-3.13.exe Key created \REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell rufus-3.13.exe Set value (str) \REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\KnownFolderDerivedFolderType = "{57807898-8C4F-4462-BB63-71042380B109}" rufus-3.13.exe Set value (int) \REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\IconSize = "16" rufus-3.13.exe Key created \REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 rufus-3.13.exe Set value (data) \REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff rufus-3.13.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance rufus-3.13.exe Key created \REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance rufus-3.13.exe Set value (int) \REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\FFlags = "1" rufus-3.13.exe Set value (data) \REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = ffffffff rufus-3.13.exe Key created \REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags rufus-3.13.exe Set value (int) \REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\Mode = "4" rufus-3.13.exe Set value (int) \REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupView = "0" rufus-3.13.exe Key created \REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1 rufus-3.13.exe Set value (int) \REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\FFlags = "1092616257" rufus-3.13.exe Key created \REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000_Classes\Local Settings rufus-3.13.exe Key created \REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU rufus-3.13.exe Set value (data) \REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\ColInfo = 00000000000000000000000000000000fddfdffd100000000000000000000000040000001800000030f125b7ef471a10a5f102608c9eebac0a0000001001000030f125b7ef471a10a5f102608c9eebac0e0000007800000030f125b7ef471a10a5f102608c9eebac040000007800000030f125b7ef471a10a5f102608c9eebac0c00000050000000 rufus-3.13.exe Set value (data) \REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 rufus-3.13.exe Key created \REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7} rufus-3.13.exe -
Suspicious use of AdjustPrivilegeToken 9 IoCs
description pid Process Token: SeDebugPrivilege 2016 rufus-3.13.exe Token: SeLoadDriverPrivilege 2016 rufus-3.13.exe Token: SeLoadDriverPrivilege 2016 rufus-3.13.exe Token: SeLoadDriverPrivilege 2016 rufus-3.13.exe Token: SeLoadDriverPrivilege 2016 rufus-3.13.exe Token: SeLoadDriverPrivilege 2016 rufus-3.13.exe Token: SeLoadDriverPrivilege 2016 rufus-3.13.exe Token: SeLoadDriverPrivilege 2016 rufus-3.13.exe Token: SeLoadDriverPrivilege 2016 rufus-3.13.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2016 rufus-3.13.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2016 rufus-3.13.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\rufus-3.13.exe"C:\Users\Admin\AppData\Local\Temp\rufus-3.13.exe"1⤵
- Checks whether UAC is enabled
- Drops file in System32 directory
- Checks SCSI registry key(s)
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:2016
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:984
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\??\c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s fhsvc1⤵PID:3588